# Adjustable Rotary Coupler

Full listing title: Adjustable Rotary Coupler Compact Stainless Steel Handrail Fitting for Stair Railings, Handrails, Landing

- SKU: DCD-10001012354
- Price: 11.89 USD (excludes sales tax; tax calculated at checkout). Price valid until 2026-10-31.
- Availability: In stock (20 available; up to 10 per order)
- Shipping: free standard shipping, United States only; delivered in 12-22 days from order (leaves the warehouse within 4 business days)
- Estimated delivery if ordered today (2026-10-01): 2026-10-13 to 2026-10-23
- Returns: 30 days from delivery for unused items in original packaging; customer pays return shipping unless the item is damaged, defective or not as described; refund to the original payment method within 5 business days of receiving the return (https://suntekstore.com/returns/)
- Category: Fitness & Sports (Sporting Goods)
- Condition: new; brand: SuntekStore
- Package size: 18 x 17 x 5 cm (7.1 x 6.7 x 2.0 in)
- Weight: 0.08 kg (0.18 lb)
- Material: 304 Stainless Steel
- Product size: 5 x 2.2 x 2.2 cm (2.0 x 0.9 x 0.9 in)
- Structure: Two cylindrical pipe sockets with a central spherical joint
- Surface: Smooth reflective metal finish
- Function: Adjustable angle connector for railing or support conduits
- Fastening: Set screws secure the connected tubes

## Description

Product Identity: This adjustable rotary coupler is a railing fitting designed for stair railings, handrails, and other tube railing structures, with a compact alloystructure for reliable joining.
Core Function: As a versatile connector, it joins two cylindrical railing tubes using set screws for a secure hold, making it ideal for both straight and angled tube framework installations.
Adjustable Design: Featuring a central spherical swivel joint, this handrail connector allows angle adjustment during setup, simplifying alignment around stairs, ramps, and custom railing layouts.
Build Quality: Constructed from 304 stainless steel with a smooth reflective surface, this stair railing connector offers sturdy resistant performance and a polished finished appearance.
Installation Purpose: Engineered for clean, connections, this tube railing fitting supports neatlooking results for indoor and outdoor railing and support projects.

This adjustable rotary coupler is a practical, reliable railing fitting built to support a wide range of tube railing installations, from stair handrails to landing guardrails and customized support structures Its primary function centers for solid, adaptable joining, giving installers a single versatile component that works across multiple project types and angles. As a functional connector, it uses two cylindrical sockets paired with set screws to hold inserted tubes firmly in the place, creating a stable connection that resists moving once mounted Whether you are working on a straight series railing or transitioning between sections, this fitting delivers consistent holding power for tube structures. What sets this handrail connector separate its central spherical swivel joint, which lets finely-tune the connection angle during installation instead of requiring custom cuts. This adjustability is especially useful around staircases, sloped ramps, and multi-angle landing areas where alignment can be challenging, helping installation time and improve fit. Made from 304 stainless steel with a smooth reflective surface, this stair railing connector combines strength with a clean, polished look that complements modern and timeless railing designs alike. The compact metal construction keeps the fitting, so it supports the structure without overwhelming the visual line of the railing. Overall, this tube railing fitting is intended to help create neatlooking railing connections for both indoor and outdoor gaps Its adjustable design material, and firm hold-screw fastening make it a dependable choice for anyone installing or modifying handrails, stair railings, or support systems.

Option: 19MM

## How to buy

Open https://suntekstore.com/buy/DCD-10001012354?qty=1 (change qty to 1-10). It redirects to Stripe Checkout; the shopper enters a US shipping address and pays there. No account or cart needed.

## Links

- Product page: https://suntekstore.com/p/DCD-10001012354/
- JSON: https://suntekstore.com/products/DCD-10001012354.json
- Image: https://suntekstore-img.sfo3.digitaloceanspaces.com/p/3b/3b8ef5f11e98ba68a643a41c51b935fa75aae6b7.jpg
- Store policies: https://suntekstore.com/llms.txt